Tornado Fountain-Triton

This predatory arachnid has eight legs and is easily recognized by a pair of grasping claws and a narrow segmented tail that is often carried in a characteristic forward curve over its back, ending with a venomous stinger. Scorpions can grow as large as 20 cm. Their venom has a fearsome reputation but only about 25 out of almost 1500 species are known to have venom capable of killing a human.

Mars Exploration Rover NASA's twin rovers, named Spirit and Opportunity, launched separately in 2003 and landed three weeks apart in January 2004. They made important discoveries about wet environments on ancient Mars that may have been favorable for supporting microbial life. Although Spirit ceased communicating with Earth in March 2010, Opportunity continues its work on the Red Planet.